Solar panel



FIG. 1 is a perspective view of a solar panel showing my new design;

FIG. 2 is a perspective view thereof from another angle;

FIG. 3 is a perspective view thereof from another angle;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a left side elevational view thereof;

FIG. 7 is a right side elevational view thereof;

FIG. 8 is a top plan view thereof; and,

FIG. 9 is a bottom plan view thereof.

The broken lines shown represent the portions of the solar panel that form no part of the claimed design. 

CLAIM The ornamental design for a solar panel, as shown and described. 